Hydrofluorosilicic Acid/Fluorosilic acid and HF(aqueous)
Hydrofluorosilicic Acid/Fluorosilic acid and HF(aqueous)
(OP)
Does anyone have any experience with HFS(FSA)? I am trying to figure whether or not, corrosion data will be close to that of aqeous HF against Ni-Cr-Mo alloys like C276. I know Monel 400, is highly resistant to HF, and I have found some data to show that C276 and monel are good, but also Ni-Cr-Fe alloys can also be resistant. Any thoughts?





RE: Hydrofluorosilicic Acid/Fluorosilic acid and HF(aqueous)
You might try the MTI publication MS-4 on Hydrogen Fluoride and Hydrofluoric Acid.
(Materials Technology Institute of the Chemical Process Industries,Inc., St Louis MO)
This is real touchy, what concentrations, impurities, and temperature and all critical.
As I recall 400 has limited use because of the risk of SCC.
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Plymouth Tube
RE: Hydrofluorosilicic Acid/Fluorosilic acid and HF(aqueous)
RE: Hydrofluorosilicic Acid/Fluorosilic acid and HF(aqueous)
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Plymouth Tube